冠状动脉微血管功能障碍作为轻链氨基粉症诊断的初步线索:一个病例报告
Ryo Bando1, Shusuke Yagi1, Muneyuki Kadota1
1Department of Cardiovascular Medicine, Tokushima University Graduate School of Biomedical Sciences, 3-18-15, Kuramoto-chou, Tokushima 770-8503, Japan.
European heart journal. Case reports
|December 18, 2025
概括
冠状动脉微血管功能障碍 (CMD),其特点是微血管阻力 (IMR) 的高指数,可能是轻链 (AL) 氨基粉症的早期指标. 认识到这种联系有助于及时诊断并避免有害的治疗.
科学领域:
- 心脏病学 心脏病学
- 血液学 血液学 血液学
- 氨基粉症研究研究
背景情况:
- 冠状动脉微血管功能障碍 (CMD) 在没有阻塞性冠状动脉疾病的情况下导致缺血.
- 慢性肌肉病也可能是轻链 (AL) 氨基粉症的表现.
研究的目的:
- 介绍一个CMD是AL氨基粉症的早期迹象的案例.
- 突出这一协会对诊断和治疗的认可的重要性.
主要方法:
- 一个67岁的妇女的病例报告,她的胸部感到不舒服.
- 侵入性生理评估显示冠状动脉流量储备减少和微血管抵抗指数 (IMR) 升高.
- 诊断工作包括单克隆蛋白鉴定,负阴影,骨髓活检和内心肌活检确认AL粉样性粉症.
主要成果:
- 患者出现了暗示心痛的症状,但没有阻塞性冠状动脉病变.
- 侵入性评估证实了严重的CMD与明显升高的IMR.
- 内心肌活检证实了AL型心脏粉症.
结论:
- 在CMD中IMR升高可能是AL氨基粉症的早期迹象.
- 对这种关联的认识可以防止不适当的疗法,如β-阻断剂.
- 促进早期诊断和治疗AL氨基粉症.
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